<template>
	<view class="out">
		子组件count: {{count}}
	</view>
</template>

<script setup>
import { ref } from 'vue';

const count = ref(100)

const updateCount = function(){
	count.value ++
}
defineExpose({
	count,
	str: '咸虾米',
	updateCount
})
</script>

<style lang="scss" scoped>
.out{
	padding: 20px;
	background: #eee;
}
</style>